updated docs

docs/graphics.html

@@ -522,6 +522,7 @@ si.graphics().then(data => console.log(data));</code></pre class="example">
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@@ -530,6 +531,7 @@ si.graphics().then(data => console.log(data));</code></pre class="example">
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@@ -538,6 +540,7 @@ si.graphics().then(data => console.log(data));</code></pre class="example">
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